• 펄프종이기술
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• 제46권6호
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• pp.63-70
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• 2014

Part of SB latex in pre-coating color was substituted with newly developed starch-based bio-binder in order to investigate the effect of starch-based bio-binder in pre-coating color on the properties of coating color and coated paper. Smoothness and gloss of coated paper were decreased with the increase of bio-binder substitution ratio. Brightness and whiteness did not show the significant changes, but stiffness was improved with bio-binder. Ink set-off, dry-pick and wet pick were decreased with the increase of bio-binder substitution ratio. In general, when all SB latex is substituted with bio-binder, ink set-off, dry- and wet-pick were deteriorated. However, it was found that if the bio-binder substitution ratio is controlled below 50%, similar qualities with coated paper manufactured by the use of SB latex binder can be obtained.

• Journal of Applied Biological Chemistry
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• 제50권3호
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• pp.164-169
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• 2007

Three coniferous essential oils were extracted from Abies koreana, Cryptomeria japonica, and Torreya nucifera by hydrodistillation. The chemical composition of each oil was analyzed by GCMS, and their antimicrobial activities were tested against two bacteria and one yeast strains. Fortyseven compounds were identified from A. koreana oil, 39 from C. japonica, and 59 from T. nucifera. Main components of the essential oils were limonene (23.5%), bornyl acetate (17.9%), ${\alpha}-pinene$ (11.1%), and camphene (10.2%) in A. koreana, kaurene (26.3%), ${\gamma}-eudesmol$ (19.0%), elemol (6.9%), and sabinene (5.1%) in C. japonica, limonene (13.5%), ${\delta}-cadinene$ (10.5%), ${\alpha}-bisabolol$ (10.2%), and ${\alpha}-copaene$ (7.7%) in T. nucifera. Among the three coniferous trees tested, the essential oils of A. koreana exhibited higher and broader antimicrobial activity against the tested organisms than those of C. japonica and T. nucifera.

• 한국동물위생학회지
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• 제29권4호
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• pp.489-492
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• 2006

Albinism, characterized by absence or lack of pigmentation from the hair, skin, hooves, nasal region and the eyes is rarely seen in cattle in Korea. A 15-day old calf, approximately weighing 28 kg has been conspicuously distinct from the rest of 40 herds of cattle raised in Sunchang country because of its white coat color, white muzzle and hooves and eyes with light pinkish iris. The calf was born of Korean indigenous cattle with no previously reported history of albinism since inception of the farm for over a decade period. It was assumed as a form of recessive genetic disorder. This observation was documented to present occurrence of albinism in cattle in Korea.

• Genomics & Informatics
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• 제9권1호
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• pp.37-38
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• 2011

Biobank Impact Factor (BIF), which is a very effective criterion to evaluate the activity of biobanks, can be estimated by the citation information of biobanks from scientific papers. We have developed a program, ManBIF, to investigate the citation information from PDF files in the literature. The program manages a dictionary for expressions to represent biobanks and their resources, mines the citation information by converting PDF files to text files and searching with a dictionary, and produces a statistical report file. It can be used as an important tool by biobanks.

• 한국컴퓨터정보학회논문지
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• 제21권1호
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• pp.107-113
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• 2016

In this paper, by managing the biometric data is changed with the passage of time, a systematic and scientifically propose a framework to increase the bio-vector generation efficiency of the smart health care. Increasing the development of human life as a medicine and has emerged smart health care according to this. Organic and efficient health management becomes possible to generate a vector when the biological domain to the wireless communication infrastructure based on the measurement of the health status and to take action in accordance with the change of the physical condition. In this paper, we propose a framework to create a bio-vector that contains information about the current state of health of the person. In the proposed framework, Bio vectors may be generated by collecting the biometric data such as blood pressure, pulse, body weight. Biometric data is the raw data from the bio-vector. The scope of the primary data can be set to active. As the collecting biometric data from multiple items of the bio-recognition vectors may increase. The resulting bio-vector is used as a measure to determine the current health of the person. Bio-vector generating the proposed framework, it can aid in the efficiency and systemic health of healthcare for the individual.

• 한국수소및신에너지학회논문집
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• 제26권5호
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• pp.484-492
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• 2015

As our government is actively introducing the RPS (Renewable Portfolio Standards) as a national renewable energy obligation policy, power producers are using the various renewable energy to meet the RPS supply quota since 2012. Recently, it is appling to use power bio-fuel oil in bio-fuel oil demonstration project with power companies. In general, power bio-fuel oils are composed of mixture products of vegetable oil, animal fat, fatty acid ester and waste oil. It is already developing for a power plant as a renewable energy abroad. In Korea, it is studying a 100% combustion and blended combustion of heavy fuel oil and bio-fuel oil. In this study, we investigated fuel characteristics of mixed power bio-fuel oil and its emission performance. Especially, it was reduced emissions of bio-oil in industrial boilers due to bio-fuel properties as compare with fuel oil.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2021년도 춘계학술대회
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• pp.499-501
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• 2021

4차 산업에 대한 꾸준한 투자와 개발로 IoT 기술이 보다 발전하게 되었고, 이에 따라 필요한 보안 플랫폼을 제공할 수 있는 플랫폼 기반의 블록체인 기술이 필요하게 되었다. 블록체인 기반의 IoT 어플리케이션인 BIoT는 향후 보다 다양한 분야에 적용되기 위하여 보다 정교한 보안성과 확장성 및 효율성을 제공하는 플랫폼 기술이 요구된다. 본 논문에서는 최근 발표되어 이슈가 되고 있는 스마트 컨트랙트 ETH 2.0을 분석하여 기존의 BIoT 개발에 요구되는 사항들을 비교하고 향후 다가오는 BIoT의 미래를 전망하여 본다.

• 한국자원식물학회:학술대회논문집
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• 한국자원식물학회 2020년도 춘계학술대회
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• pp.74-74
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• 2020

Skin is continuously exposed to a variety of environmental stresses, including ultraviolet (UV) radiation. UVB is an inherent component of sunlight that crosses the epidermis and reaches the upper dermis, leading to increased oxidative stress, activation of inflammatory response and accumulation of DNA damage among other effects. In the present study, the anti-wrinkle mechanism of Acorus gramineus callus culture supernatant (GB-AGS-PSC) was elucidated in UVB treated HaCaT keratinocytes. GB-AGS-PSC prevented the matrix metalloprotease 1 (MMP-1), elastin, and pro-collagen product and cytotoxicity and SOD inhibition. Quantitative polymerase chain reaction showed that GB-AGS-PSC-treated cells displayed dose-dependent increase in messenger RNA expression levels of Aquaporin 3 (AQP3), Keratin 1(KRT1), fillagrin, and hyaluronan synthase-2 (HAS 2) and decreased expression levels of matrix metalloproteinase-3, -9, and -13 in UVB treated HaCaT keratinocytes. Additionally, GB-AGS-PSC suppressed TNF-α, IL-1β, and IL-8 product for inflammatory responses in UVB treated HaCaT keratinocytes. Therefore, GB-AGS-PSC may be useful as an anti-photoaging resource for the skin.

• 핵의학기술
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• 제16권1호
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• pp.108-114
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• 2012

면역측정법을 이용하는 검사실에서 가장 많이 사용하고 있는 상업용 제3자 정도관리물질이 BIO-RAD사에서 제공하는 물질이다. 현재 BIO-RAD 정도관리 물질에 포함된 Reference Sheet에는 비방사면역측정을 이용한 검사방법과 검사장비별로 각 측정물질의 Acceptable Range가 기재되어 있다. 그러나 방사면역측정법을 이용하여 검사하는 측정kit나 기기에 대해서는 실무에 적용할 만한 Acceptable Range에 대한 언급이 다소 부족한 것이 현실이다. 방사면역측정검사에 대한 Acceptable Range를 설정하여 검사결과의 객관성을 높이고 누적된 데이터를 제조사에 권고하여 발행되는 Reference Sheet에 기재하고자 한다. 본원에서는 2009년부터 부분적으로 BIO-RAD 정도관리 물질을 사용하여 2011년에는 일부 특정 항목을 제외한 대부분의 검사종목에 BIO-RAD 제 3자 정도관리물질을 사용하고 있다. 따라서 측정된 내부정도관리 데이터를 BIO-RAD사의 Unity Real Time program (version 1.0.9.27)을 이용하여 Acceptable Range를 설정하였다. BIO-RAD 정도관리 물질을 사용하는 약 50가지 검사종목의 20개 Point Data의 평균값, 표준편차, 변이계수를 구하여 측정kit별 Acceptable Range를 산출하였으며, 자동화 면역 측정기기인 Roche Elecsys/ E170/ cobas e Systems의 측정값과 비교하였다. 현재 시행하고 있는 외부정도관리 프로그램과 같이 BIO-RAD 정도관리 물질을 공통으로 사용하는 병원과 peer group을 설정하여 측정 kit별, 기기별 Acceptable Range를 제조사에 권고하여 Reference Sheet에 방사면역검사실에 적합한 Acceptable Range를 기재하여 검사결과의 객관성을 높이고 국내외적으로 방사면역측정법에 대한 인지도를 높이고자 한다.

• 정보처리학회논문지B
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• 제11B권7호
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• pp.759-768
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• 2004

생체인식기술을 응용한 제품이 다양해지면서 상호운용성의 문제가 제기되어 국제표준화가 진행중인 BioAPl(Biometric Application Pro-gramming Interface)를 기반으로 한 생체인식 제품의 개발이 증대되고 있다. 그러나 BioAPl를 적용하여 개발된 제품에 대한 성능 측정 및 표준규격의 적합성 여부에 대한 신뢰성 있는 평가 도구가 마련되어 있지 않은 상태이다. 본 논문은 생체인식시스템이 BioAPl 규격의 요구사항 및 기준에 얼마나 만족하여 개발하였는가를 검증하기 위한 적합성시험 방법을 연구하였다. 제안된 적합성 시험기술의 첫 번째는 BioAPl명세서가 제공하는 각 함수들을 제대로 구현하였는가에 대한 확인과 사용여부를 평가하는 것이다. 이것은 응용에서 APl(Application Provider Inter-face)함수를 호출하면 프레임워크를 통해 BSP(Biometric Service Provider)를 실행하는 것으로 이때 파라미터와 선행함수의 선택이 필요하다. 두 번째는 BioAPl의 해당 테스트케이스를 분석하여 모듈관리, 핸들기능, 검증기능에 대한 시나리오를 평가하는 것이다. 실험은 BioAPl 컨소시엄에서 제공하는 샘플프로그램과 상용 지문검증시스템의 BSP를 사용하여 제안하는 적합성 평가 방법에 대한 실험을 수행하였다. 이에 따라 BioAPl를 기반으로 한 BSP들이 요구사항에 적합하게 개발되었는지를 판단할 수 있었다.